fat_table.c File Reference

#include <string.h>
#include "fat_defs.h"
#include "fat_access.h"
#include "fat_table.h"

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Macros
#define	FAT16_GET_16BIT_WORD(pbuf, location)   ( GET_16BIT_WORD(pbuf->ptr, location) )
#define	FAT16_SET_16BIT_WORD(pbuf, location, value)   { SET_16BIT_WORD(pbuf->ptr, location, value); pbuf->dirty = 1; }
#define	FAT32_GET_32BIT_WORD(pbuf, location)   ( GET_32BIT_WORD(pbuf->ptr, location) )
#define	FAT32_SET_32BIT_WORD(pbuf, location, value)   { SET_32BIT_WORD(pbuf->ptr, location, value); pbuf->dirty = 1; }

Functions
uint32	fatfs_count_free_clusters (struct fatfs *fs)
int	fatfs_fat_add_cluster_to_chain (struct fatfs *fs, uint32 start_cluster, uint32 newEntry)
void	fatfs_fat_init (struct fatfs *fs)
int	fatfs_fat_purge (struct fatfs *fs)
int	fatfs_fat_set_cluster (struct fatfs *fs, uint32 cluster, uint32 next_cluster)
int	fatfs_find_blank_cluster (struct fatfs *fs, uint32 start_cluster, uint32 *free_cluster)
uint32	fatfs_find_next_cluster (struct fatfs *fs, uint32 current_cluster)
int	fatfs_free_cluster_chain (struct fatfs *fs, uint32 start_cluster)
void	fatfs_set_fs_info_next_free_cluster (struct fatfs *fs, uint32 newValue)

Macro Definition Documentation

FAT16_GET_16BIT_WORD

#define FAT16_GET_16BIT_WORD	(		pbuf,
			location
	)		( GET_16BIT_WORD(pbuf->ptr, location) )

Definition at line 54 of file fat_table.c.

FAT16_SET_16BIT_WORD

#define FAT16_SET_16BIT_WORD	(		pbuf,
			location,
			value
	)		{ SET_16BIT_WORD(pbuf->ptr, location, value); pbuf->dirty = 1; }

Definition at line 55 of file fat_table.c.

FAT32_GET_32BIT_WORD

#define FAT32_GET_32BIT_WORD	(		pbuf,
			location
	)		( GET_32BIT_WORD(pbuf->ptr, location) )

Definition at line 52 of file fat_table.c.

FAT32_SET_32BIT_WORD

#define FAT32_SET_32BIT_WORD	(		pbuf,
			location,
			value
	)		{ SET_32BIT_WORD(pbuf->ptr, location, value); pbuf->dirty = 1; }

Definition at line 53 of file fat_table.c.

Function Documentation

fatfs_count_free_clusters()

uint32 fatfs_count_free_clusters

(

struct fatfs *

fs

)

Definition at line 445 of file fat_table.c.

fatfs_fat_add_cluster_to_chain()

int fatfs_fat_add_cluster_to_chain	(	struct fatfs *	fs,
		uint32	start_cluster,
		uint32	newEntry
	)

Definition at line 414 of file fat_table.c.

References FAT32_LAST_CLUSTER, fatfs_fat_set_cluster(), and fatfs_find_next_cluster().

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fatfs_fat_init()

void fatfs_fat_init

(

struct fatfs *

fs

)

Definition at line 60 of file fat_table.c.

References FAT32_INVALID_CLUSTER, FAT_BUFFERS, memset(), and NULL.

Referenced by fatfs_format_fat16(), fatfs_format_fat32(), and fatfs_init().

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fatfs_fat_purge()

int fatfs_fat_purge

(

struct fatfs *

fs

)

Definition at line 179 of file fat_table.c.

References fat_buffer::dirty.

fatfs_fat_set_cluster()

int fatfs_fat_set_cluster	(	struct fatfs *	fs,
		uint32	cluster,
		uint32	next_cluster
	)

Definition at line 349 of file fat_table.c.

References FAT_TYPE_16.

Referenced by fatfs_add_free_space(), fatfs_allocate_free_space(), fatfs_fat_add_cluster_to_chain(), and fatfs_free_cluster_chain().

fatfs_find_blank_cluster()

int fatfs_find_blank_cluster	(	struct fatfs *	fs,
		uint32	start_cluster,
		uint32 *	free_cluster
	)

Definition at line 288 of file fat_table.c.

References FAT_TYPE_16.

Referenced by fatfs_add_free_space(), and fatfs_allocate_free_space().

fatfs_find_next_cluster()

uint32 fatfs_find_next_cluster	(	struct fatfs *	fs,
		uint32	current_cluster
	)

Definition at line 205 of file fat_table.c.

References FAT_TYPE_16.

Referenced by fatfs_fat_add_cluster_to_chain(), fatfs_free_cluster_chain(), and fatfs_sector_reader().

fatfs_free_cluster_chain()

int fatfs_free_cluster_chain	(	struct fatfs *	fs,
		uint32	start_cluster
	)

Definition at line 389 of file fat_table.c.

References FAT32_LAST_CLUSTER, fatfs_fat_set_cluster(), and fatfs_find_next_cluster().

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fatfs_set_fs_info_next_free_cluster()

void fatfs_set_fs_info_next_free_cluster	(	struct fatfs *	fs,
		uint32	newValue
	)

Definition at line 260 of file fat_table.c.

References FAT_TYPE_16.

Referenced by fatfs_add_free_space(), and fatfs_allocate_free_space().